text: import uniqueSlug from './uniqueSlug'
  
  describe('uniqueSlug', () => {
    it('slugifies given string', () => {
      const string = 'Hello World'
      const isUnique = jest.fn().mockResolvedValue(true)
      expect(uniqueSlug(string, isUnique)).resolves.toEqual('hello-world')
    })
  
    it('increments slugified string until unique', () => {
      const string = 'Hello World'
      const isUnique = jest
        .fn()
        .mockResolvedValueOnce(false)
        .mockResolvedValueOnce(true)
      expect(uniqueSlug(string, isUnique)).resolves.toEqual('hello-world-1')
    })
  
    it('slugify null string', () => {
      const string = null
      const isUnique = jest.fn().mockResolvedValue(true)
      expect(uniqueSlug(string, isUnique)).resolves.toEqual('anonymous')
    })
  })
  